Auxiliary plugging and unplugging device for port infusion needle

Abstract

The invention provides an auxiliary plugging and unplugging device for an infusion port needle, and belongs to the technical field of infusion port needle plugging and unplugging devices, and the auxiliary plugging and unplugging device comprises an auxiliary plugging and unplugging device body and an infusion port needle seat; the plugging auxiliary device body comprises a shell; two ends of the shell are opened, and a partition plate is arranged in the center in the shell to divide the shell into a first mounting space and a second mounting space; the first mounting space is provided with an auxiliary insertion mechanism; and an auxiliary pulling-out mechanism is arranged in the second mounting space. Automatic insertion and extraction of the infusion harbor needle can be achieved through the insertion and extraction auxiliary device, time and labor are saved compared with manual insertion and extraction, and the working efficiency is improved; meanwhile, the infusion port needle can be ensured to be perpendicular to the infusion port through the matching of the shell of the plugging auxiliary device and the infusion port, the puncture failure caused by inclined puncture is avoided, and the puncture implantation success rate of the infusion port needle is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of infusion port needle plugging and extraction devices, and in particular to an infusion port needle auxiliary plugging and extraction device. Background Art

[0002] For patients who need long-term or repeated intravenous infusions for multiple courses of chemotherapy for tumors and long-term parenteral nutrition support, doctors will implant an infusion port in the patient's body to reduce the pain caused by repeated venous punctures. The infusion port needle is a medical device used in conjunction with the infusion port. When in use, the medical staff will vertically insert the infusion port needle into the injection seat of the infusion port and enter the reservoir of the infusion port through the puncture diaphragm. The existing infusion port needle is a butterfly wing needle, which requires manual puncture and implantation by medical staff. During the puncture, the medical staff locates the infusion port with one hand and inserts the infusion port needle with the other hand; after the infusion port needle is used, the medical staff needs to manually pull it out. During the puncture process, the infusion port needle may not be perpendicular to the injection seat, resulting in implantation failure, and re-implantation is required. Multiple punctures will not only cause pain to the patient, but also increase the workload of medical staff; in addition, there are blind spots in the puncture process, resulting in inaccurate puncture center position; during the removal process, there may be risks such as cross infection caused by the recoil stabbing the medical staff. To this end, the present invention provides an auxiliary insertion and extraction device for an infusion port needle. Summary of the invention

[0003] The purpose of the present invention is to provide an auxiliary insertion and extraction device for an infusion port needle.

[0004] To solve the above technical problems, the purpose of the present invention is achieved as follows:

[0005] An infusion port needle auxiliary plugging and extraction device, comprising: an insertion and extraction auxiliary device body and an infusion port needle seat;

[0006] The plug-in auxiliary device body comprises a shell; both ends of the shell are open, and a partition is arranged in the center of the shell to divide it into a first installation space and a second installation space;

[0007] A fixed base, a first sliding clamp seat and a first fixed top seat are sequentially arranged in the first installation space from the end of the shell to the center; a second sliding clamp seat and a second fixed top seat are sequentially arranged in the second installation space from the end of the shell to the center;

[0008] The first sliding clamp seat and the second sliding clamp seat have the same structure, are hollow inside and are provided with a baffle, the baffle is divided downward into a plurality of petals to form a clamping portion that can clamp the infusion port needle seat, and upward to form a connecting portion; the bottom of the clamping portion can be opened by the fixed base; the outer edge of the top of the connecting portion is provided with a second buckle, and the outer side wall is provided with a push rod; the push rod extends from the slide groove provided on the shell to the outside of the shell;

[0009] The first fixed top seat and the second fixed top seat have the same structure, and both include two fixed plates that can be stretched apart; a third buckle that matches the second buckle is provided on the inner edge of the bottom of the fixed plate;

[0010] A first spring is arranged between the first sliding clamp seat and the first fixed top seat, which can drive the first sliding clamp seat to move; when the second buckle of the first sliding clamp seat cooperates with the third buckle of the first fixed top seat, the first sliding clamp seat cannot escape from the first fixed top seat, and the first spring is compressed at this time;

[0011] A second spring is arranged between the second sliding clamp seat and the second fixed top seat, which can drive the second sliding clamp seat to move; when the second buckle of the second sliding clamp seat cooperates with the third buckle of the second fixed top seat, the second sliding clamp seat cannot enter the second fixed top seat, and the second spring is stretched at this time.

[0012] On the basis of the above scheme and as a preferred scheme of the above scheme, the infusion port needle seat is circular, with an infusion port needle arranged at the bottom, an infusion tube connected to the infusion port needle arranged on the side, and a clamping buckle groove cooperating with the clamping part is opened on the outer wall.

[0013] On the basis of the above scheme and as a preferred scheme of the above scheme, a first buckle that protrudes inwards and is adapted to the clamping buckle groove is provided on the inner side of the bottom of the clamping portion and has a width that gradually narrows from top to bottom.

[0014] On the basis of the above scheme and as a preferred scheme of the above scheme, a through hole for the infusion port needle seat to pass through is opened in the center of the fixed base, and an upwardly protruding ring seat is arranged at the edge of the through hole; the outer edge of the top of the ring seat is chamfered to form an inclined portion; the inclined portion can act on the inner side of the bottom of the clamping portion to prop open the clamping portion.

[0015] On the basis of the above solution and as a preferred solution of the above solution, there are two push rods, which are symmetrically arranged on both sides of the connecting portion.

[0016] On the basis of the above scheme and as a preferred scheme of the above scheme, a support rod is arranged on the inner side of the fixing plate; the first end of the support rod is fixedly connected to the inner wall of the fixing plate, and the second end extends to the outside of the shell in the direction of the other fixing plate; the middle part of the support rod is an arc structure to stagger the spring setting.

[0017] On the basis of the above solution and as a preferred solution of the above solution, a button is provided at the second end of the support rod.

[0018] On the basis of the above solution and as a preferred solution of the above solution, the connecting portion of the second sliding clamp seat is provided with a groove corresponding to the support rod.

[0019] The beneficial effects of the present invention are:

[0020] 1. The plug-in and pull-out auxiliary device can realize automatic plug-in and pull-out of the infusion port needle, which saves time and effort compared with manual plug-in and pull-out, and improves work efficiency; at the same time, the shell of the plug-in and pull-out auxiliary device cooperates with the infusion port to ensure that the infusion port needle is perpendicular to the infusion port, avoiding failure due to tilted puncture, and improving the success rate of infusion port needle puncture and implantation.

[0021] 2. Using an auxiliary device to automatically remove the infusion port needle not only saves time and effort, but also avoids the risk of needle stick injury caused by recoil during manual removal, thereby improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the present invention.

[0023] Figure 2 It is a cross-sectional view of the present invention.

[0024] Figure 3 It is a schematic diagram of the structure in the first installation space of the present invention.

[0025] Figure 4 It is a schematic diagram of the structure in the second installation space of the present invention.

[0026] Figure 5 It is a schematic diagram of the structure of the infusion port needle seat of the present invention.

[0027] Figure 6 It is a schematic diagram of the fixed base structure of the present invention.

[0028] Figure 7 It is a schematic diagram of the structure of the first sliding clamp of the present invention.

[0029] Figure 8 It is a schematic diagram of the first fixed top seat structure of the present invention.

[0030] Fig. 9 It is a schematic diagram of the second sliding clamp structure of the present invention.

[0031] Fig.10 It is a schematic diagram of the second fixed top seat structure of the present invention.

[0032] In the figure: 1. main body of the plug-in assisting device; 2. infusion port needle seat; 21. infusion port needle; 22. infusion tube; 23. clamping buckle groove; 3. shell; 4. fixed base; 41. through hole; 42. ring seat; 5. first sliding clamp seat; 51. baffle; 52. first buckle; 53. second buckle; 54. push rod; 55. slide groove; 6. first fixed top seat; 61. fixing plate; 62. third buckle; 63. support rod; 64. button; 7. second sliding clamp seat; 71. slot; 8. second fixed top seat; 9. first spring; 10. second spring. DETAILED DESCRIPTION

[0033] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0034] like Figure 1 and Figure 2 As shown, an infusion port needle auxiliary plugging and extraction device includes an insertion and extraction auxiliary device body 1 and an infusion port needle seat 2.

[0035] The plug-in assist device body 1 includes a housing 3, which is a cylindrical structure with openings at both ends. A partition is provided in the center of the housing to divide it into a first installation space and a second installation space. The shape of the opening is the same as that of the infusion port, and can be covered on the infusion port to achieve positioning.

[0036] like Figure 3 and Figure 4 As shown, a fixed base 4, a first sliding clamp seat 5 and a first fixed top seat 6 are sequentially arranged in the first installation space from the end of the shell 3 to the center. A second sliding clamp seat 7 and a second fixed top seat 8 are sequentially arranged in the second installation space from the end of the shell 3 to the center.

[0037] like Figure 5 As shown, the infusion port needle seat 2 is circular, with an infusion port needle 21 at the bottom, an infusion tube 22 connected to the infusion port needle 21 at the side, and a clamping buckle groove 23 that cooperates with the clamping part of the plug-in assisting device body 1 is opened on the outer wall.

[0038] Among them, Figure 7 As shown, the first sliding clamp seat 5 is a cylindrical structure, which is hollow inside and is provided with a baffle 51 inside. The baffle 51 is divided downward into several petals to form a clamping part that can clamp the infusion port needle seat 2, and forms a connecting part upward. There is a gap between the several petals of the clamping part so that the infusion tube 22 of the infusion port needle seat 2 can extend. The inner side of the bottom of the clamping part is provided with a first buckle 52 that is protruding inward and the width gradually narrows from top to bottom and is adapted to the clamping buckle groove 23. The infusion port needle seat 2 can be fixed on the first sliding clamp seat 5 by the cooperation of the first buckle 52 and the clamping buckle groove 23. In addition, a through groove corresponding to the infusion tube 22 is opened on the shell 3 so that the infusion tube 22 can extend outside the shell 3.

[0039] The bottom of the clamping portion can be opened by the fixed base 4. Specifically, Figure 3 and Figure 6 As shown, the fixed base 4 is fixedly connected to the inside of the housing 3, and a through hole 41 is provided in the center for the infusion port needle seat 2 to pass through, and an upwardly protruding ring seat 42 is provided at the edge of the through hole 41, and a chamfer is provided at the outer edge of the top of the ring seat 42 to form an inclined portion, which can act on the inner side of the bottom of the clamping portion to open the clamping portion. When the first sliding clamp seat 5 moves onto the fixed base 4, the clamping portion can be opened by the cooperation of the inclined portion at the top of the fixed base 4 and the first buckle 52 with a gradually changing width, so that the cooperation between the first buckle 52 and the clamping buckle groove 23 is disconnected, so that the infusion port needle seat 2 is separated from the first sliding clamp seat 5.

[0040] A second buckle 53 is provided at the outer edge of the top of the connection part, and a push rod 54 is provided on the outer wall. The push rod 54 extends from a slide groove 55 provided on the housing 3 to the outside of the housing 3. The second buckle 53 protrudes toward the outside of the first sliding clamp seat 5, and the width gradually widens from top to bottom. There are two push rods 54, which are symmetrically arranged on both sides of the connection part to increase the contact area with the hand and facilitate pushing the first sliding clamp seat 5.

[0041] like Figure 8 As shown, the first fixed top seat 6 includes two fixed sheets 61 that can be stretched apart, the fixed sheets 61 are arc-shaped, and the top is fixedly connected to the partition. The two fixed sheets 61 are symmetrically arranged to form a cylindrical structure, and the diameter of the cylindrical structure is larger than the diameter of the first sliding clamp seat 5, so that the first sliding clamp seat 5 can enter the first fixed top seat 6.

[0042] The inner edge of the bottom of the fixing plate 61 is provided with a third buckle 62 adapted to the second buckle 53. The third buckle 62 protrudes toward the inside of the first fixing top seat 6, and its width gradually narrows from top to bottom. The second buckle 53 and the third buckle 62 are both triangular in cross section, and can be automatically buckled when docked.

[0043] A first spring 9 is provided between the first sliding clamp seat 5 and the first fixed top seat 6 to drive the first sliding clamp seat 5 to move. The first spring 9 is located inside the first sliding clamp seat 5 and the first fixed top seat 6, with the top connected to the partition plate and the bottom connected to the baffle plate 51. When the second buckle 53 of the first sliding clamp seat 5 cooperates with the third buckle 62 of the first fixed top seat 6, the first sliding clamp seat 5 cannot escape from the first fixed top seat 6, and the first spring 9 is compressed at this time. After the fixing sheet 61 of the first fixed top seat 6 is opened, the second buckle 53 and the third buckle 62 are disconnected, and the first spring 9 releases its elastic force to drive the first sliding clamp seat 5 to descend rapidly.

[0044] Preferably, if Figure 8As shown, a support rod 63 is provided inside the fixing sheet 61, the first end of the support rod 63 is fixedly connected to the inner wall of the fixing sheet 61, and the second end extends to the outside of the housing 3 in the direction of the other fixing sheet 61, and the middle part of the support rod 63 is an arc structure to stagger the first spring 9. A button 64 is provided at the second end of the support rod 63 for convenient finger pressing. Pressing the support rod 63 can drive the two fixing sheets 61 to move away from each other to release the first sliding clamp 5.

[0045] like Fig. 9 As shown, the structure of the second sliding clamp seat 7 is the same as that of the first sliding clamp seat 5, and both include a clamping portion and a connecting portion. Among them, the clamping portion of the second sliding clamp seat 7 is exactly the same as that of the first sliding clamp seat 5, and both are used to clamp the infusion port needle seat 2. The connecting portion of the second sliding clamp seat 7 is structurally the same as that of the first sliding clamp seat 5, and there are only two differences: first, the second buckle 53 of the second sliding clamp seat 7 is different; second, a slot 71 is provided on the connecting portion of the second sliding clamp seat 7. The second fixed top seat 8 will be described in detail later.

[0046] like Fig.10 As shown, the structure of the second fixed top seat 8 is the same as that of the first fixed top seat 6, but there is a difference between the third buckle 62 at the bottom of the second fixed top seat 8 and the third buckle 62 at the bottom of the first fixed top seat 6. The third buckle 62 at the bottom of the second fixed top seat 8 has a triangular cross-section, and its width gradually narrows from the top of the second fixed top seat 8 upward, while the width of the third buckle 62 at the bottom of the first fixed top seat 6 gradually widens from the top of the first fixed top seat 6 upward, and both are suitable for the removal and insertion of the infusion port needle.

[0047] In addition, the length of the fixing piece 61 of the second fixed top seat 8 is greater than the length of the fixing piece 61 of the first fixed top seat 6. When the infusion port needle is inserted, only the top of the first sliding clamp seat 5 will enter the first fixed top seat 6, and when the infusion port needle is pulled out, most of the second sliding clamp seat 7 will enter the second fixed top seat 8, so the length of the second fixed top seat 8 needs to be extended to meet the demand.

[0048] A second spring 10 is provided between the second sliding clamp seat 7 and the second fixed top seat 8, which can drive the second sliding clamp seat 7 to move. The second spring 10 is provided between the second sliding clamp seat 7 and the second fixed top seat 8, with the top connected to the partition plate, and the bottom connected to the baffle plate 51 of the second sliding clamp seat 7. When the second spring 10 is in the initial state, the connecting portion of the second sliding clamp seat 7 is located inside the second fixed top seat 8, and when the second spring 10 is stretched, the connecting portion of the second sliding clamp seat 7 extends out of the second fixed top seat 8. Therefore, the cooperation between the second buckle 53 of the second sliding clamp seat 7 and the third buckle 62 of the second fixed top seat 8 must satisfy: the connecting portion of the second sliding clamp seat 7 can freely extend out of the second fixed top seat 8; and it is limited when it is extended.

[0049] The second fixed top seat 8 also includes a support rod 63 that is the same as the first fixed top seat 6, through which the fixing sheet 61 of the second fixed top seat 8 can be opened, so that the second sliding clamp seat 7 can be quickly retracted into the second fixed top seat 8 under the elastic force of the second spring 10. In order to facilitate pushing and opening the second fixed top seat 8, the support rod 63 is arranged near the bottom of the second fixed top seat 8, and in order to avoid mutual interference between the second sliding clamp seat 7 and the support rod 63, a slot 71 corresponding to the support rod 63 is opened on the connecting portion of the second sliding clamp seat 7.

[0050] Working process:

[0051] Implantation process: First, fix the infusion port needle seat 2 on the first sliding clamp seat 5, with the infusion port needle facing downward; then drive the first sliding clamp seat 5 and the infusion port needle seat 2 to rise through the push rod 54, until the top of the first sliding clamp seat 5 extends into the first fixed top seat 6 and is fixed by snapping; cover the bottom of the shell 3 on the infusion port, so that the infusion port needle is located in the middle of the infusion port and perpendicular to the infusion port; press the support rod 63 to open the first fixed top seat 6, disconnect the limit on the first sliding clamp seat 5, and quickly descend under the action of the first spring 9, driving the infusion port needle to quickly pierce the skin and implant into the infusion port. During the descent, the first sliding clamp seat 5 will be opened by the fixed base 4, realizing the separation of the infusion port needle seat 2 and the first sliding clamp seat 5.

[0052] The removal process: first, the push rod 54 drives the second sliding clamp seat 7 to extend into the second fixed top seat 8, so that the second spring 10 is in a stretched state; then the basic body 1 of the insertion and extraction auxiliary device is aligned with the infusion port needle seat 2 on the skin and clamped together; the second fixed top seat is propped open by the support rod 63, so that the second sliding clamp seat 7 and the infusion port needle seat 2 rise under the action of the second spring 10 to achieve needle removal.

[0053] The preferred specific embodiments of the present invention are described in detail above. It should be understood that a person skilled in the art can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solution that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the scope of protection determined by the claims.

Claims

1. An auxiliary insertion and extraction device for an infusion port needle, characterized in that: include: An insertion and extraction auxiliary device body (1) and an infusion port needle seat (2); The plugging and unplugging auxiliary device body (1) comprises a shell (3); the shell (3) has openings at both ends, and a partition is provided at the center of the shell to divide it into a first installation space and a second installation space; A fixed base (4), a first sliding clamp seat (5) and a first fixed top seat (6) are sequentially arranged in the first installation space from the end of the shell (3) to the center; a second sliding clamp seat (7) and a second fixed top seat (8) are sequentially arranged in the second installation space from the end of the shell (3) to the center; The first sliding clamp seat (5) and the second sliding clamp seat (7) have the same structure, are hollow inside and are provided with a baffle (51), the baffle (51) is divided downward into a plurality of petals to form a clamping portion capable of clamping the infusion port needle seat (2), and upward to form a connecting portion; the bottom of the clamping portion can be opened by the fixed base (4); the top outer edge of the connecting portion is provided with a second buckle (53), and the outer side wall is provided with a push rod (54); the push rod (54) extends from a slide groove (55) provided on the shell (3) to the outside of the shell (3); The first fixed top seat (6) and the second fixed top seat (8) have the same structure, and both include two fixed plates (61) that can be stretched apart; the inner edge of the bottom of the fixed plate (61) is provided with a third buckle (62) that is compatible with the second buckle (53); A first spring (9) is arranged between the first sliding clamp seat (5) and the first fixed top seat (6) and can drive the first sliding clamp seat (5) to move; when the second buckle (53) of the first sliding clamp seat (5) cooperates with the third buckle (62) of the first fixed top seat (6), the first sliding clamp seat (5) cannot escape from the first fixed top seat (6), and at this time, the first spring (9) is compressed; A second spring (10) is arranged between the second sliding clamp seat (7) and the second fixed top seat (8) and can drive the second sliding clamp seat (7) to move; when the second buckle (53) of the second sliding clamp seat (7) cooperates with the third buckle (62) of the second fixed top seat (8), the second sliding clamp seat (7) cannot enter the second fixed top seat (8), and at this time the second spring (10) is stretched.

2. The infusion port needle auxiliary insertion and extraction device according to claim 1, characterized in that: The infusion port needle seat (2) is circular, with an infusion port needle (21) arranged at the bottom, an infusion tube (22) connected to the infusion port needle (21) arranged on the side, and a clamping buckle groove (23) cooperating with the clamping part opened on the outer wall.

3. The infusion port needle auxiliary insertion and extraction device according to claim 2, characterized in that: A first buckle (52) is provided on the inner side of the bottom of the clamping portion and is protruding inwards and has a width that gradually narrows from top to bottom and is compatible with the clamping buckle groove (23).

4. The infusion port needle auxiliary insertion and extraction device according to claim 3, characterized in that: A through hole (41) is provided at the center of the fixed base (4) for the infusion port needle seat (2) to pass through, and an upwardly protruding ring seat (42) is provided at the edge of the through hole (41); a chamfer is provided on the outer edge of the top end of the ring seat (42) to form an inclined portion; the inclined portion can act on the inner side of the bottom of the clamping portion to prop open the clamping portion.

5. The infusion port needle auxiliary insertion and extraction device according to claim 1, characterized in that: There are two push rods (54) which are symmetrically arranged on both sides of the connecting portion.

6. The infusion port needle auxiliary insertion and extraction device according to claim 1, characterized in that: A support rod (63) is arranged inside the fixing plate (61); a first end of the support rod (63) is fixedly connected to the inner wall of the fixing plate (61), and a second end extends toward the other fixing plate (61) to the outside of the shell (3); the middle part of the support rod (63) is in an arc structure so as to stagger the spring arrangement.

7. The infusion port needle auxiliary insertion and extraction device according to claim 6, characterized in that: The second end of the support rod (63) is provided with a button (64).

8. The infusion port needle auxiliary insertion and extraction device according to claim 6, characterized in that: The connecting portion of the second sliding clamp seat (7) is provided with a slot (71) corresponding to the support rod (63).

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